Power and field of view 3x, 12.5 deg
4x, 12.5 deg
6x, 9.6 deg
Optical Design Keplerian, monocular
Interchangeable for right or left eye Yes
Focusing method Manual rack and pinion
Closest near focus (at neutral) 3x 7 inches
4x 9 inches
6x 12 inches
Weight (telescope alone) 0.9 oz
Eyeglass frame options Ocutech VES- II frames only
Mounting method Bracket/plate assembly
Positioning options Top: Bioptic position (above mounting plate)
Bottom: Full-diameter position (below mounting plate)
Refractive error correction method Internal by focus +12/-12
Eyepiece corrections Yes
Cylinder indicated above 3D
Eyepiece design Truncated
Filter cap options Yes
Reading cap options Yes
Adjustable after assembly Yes
Accessories Slip-behind filters
Mounting brackets: Top, Bottom
Patient case
Warranty Limited lifetime warranty